Sky2 does not appear to have a plus 1 channel, but it does have several sister channels. These include Sky1, Sky Arts 1, Sky Arts 2, and Sky Real Lives 2.
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9
8
(because zero time 1= 0 plus 1)
Anything multiplied by 0 is 0, so all the ones before the 0 can be ignored. It is now 0+1 which equals 1.